<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>群二维码</title>
    <script type="text/javascript" src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
    <script type="text/javascript" src="https://cdn.bootcss.com/jquery.form/4.2.1/jquery.form.min.js"></script>
</head>
<body>
<img src="${img}" />
</body>
</html>